I just stayed for three days at the Fremont, while i was there i took advantage of a free buffet promotion which runs through the end of the May. The promotion is for members of the B Connected players club (free to join) to get the free buffet each day you swipe your card first and then play the slots.; Monday through Friday except Wednesday when you earn 100 points you can go back and swipe your players card for a coupon for a free breakfast or lunch buffet.
The coupon must be used the same day and the promotion also runs on the weekends but you have to get 200 instead of 100 points. If you plan to be in Downtown Las Vegas playing slots early in the day anyways its a good deal for more information and rules check with the properties B Connected booth.